Technical Information · issue 52 of 2008
New STIHL 3/8" RAPID™ Micro™ Comfort 3 Chains
IssueTI 52/2008
Full text
Page 1 of 3
STIH)
Technical Information 52.2008
New STIHL 3/8" RAPID™ Micro™ Comfort 3 Chains – Type 3662
– Type 3664
Contents
1. 3/8" RAPID™ Micro™ Comfort 3
2. Service Note
3. Spare Parts
4. Chain Types
1. 3/8" RAPID™ Micro™ Comfort 3
The new 3/8" RAPID™ Micro™ Comfort 3
(3/8" RMC 3) chain is a low kickback and reduced
vibration semi-chisel chain which is now available
as an alternative to the full chisel 3/8" RAPID™ 1 1
Super Comfort 3.
The new chain is intended for users who appreciate
low kickback and reduced vibrations combined with
good cutting performance and service life.
The 3/8" RAPID™ Micro™ Comfort 3 can be used
689TI149 KN
on saws with an engine power greater than 2.5 kW.
The 3/8" RMC 3 is a low-kickback chain. The
humped drive link (1) guides the cutter into the wood
with less effort to make it a smooth-running chain
with low-kickback.
The cutters are the same as those used in the
3/8" RAPID™Micro™ C (3/8" RMC).
The 3/8" RMC 3 is available with .050" (1.3 mm) and
.063" (1.6 mm) drive links.
TI_52_2008_30_01_01.fm englisch / English
)m~ge 2 Technical Information 52.2008
1.1 Advantages 1.3 Sharpening the saw chain
. Reduced vibration Depth gauge setting, side plate and sharpening
angles on the 3/8" RMC 3 are the same as the
. Low kickback
3/8" RMC. The sharpening procedure is also the
. Smooth running same.
. Good control
1.4 Lowering the depth gauge
. High cutting performance
On the 3/8" RMC 3, the top of the humped drive link
(with service marking) is filed down together with the
depth gauge. The other parts of the humped drive
1.2 Identifying features of the RAPID™ link must not be filed, since this could reduce its low
Micro™ Comfort 3 kickback characteristics. The depth gauge setting is
the same as on the 3/8" RMC.
2 1 2 1
2. Service Note
The saw chain can be repaired with the aid of the
NG 4, NG 5 and NG 7 rivet spinners and chain
breakers.
3 3
689TI150 KN
2.1 Replacing cutters
Right-hand and left-hand cutter repair kits are
. Humped drive link (1) in front of each cutter. available. Each kit contains five cutters and five
. As on the RAPID™ Micro™ C, a "C" is stamped preset tie straps.
into the cutter (2) and an arrow is stamped into Note the direction of rotation of the tie strap (arrow)
the tie straps (3) – the arrow points in the and cutter: The bevel of the tie strap and cutter must
direction of chain rotation. be to the rear of the direction of travel.
2.2 Replacing tie straps
The tie straps between the cutters have no influence
on the vibration-reducing function of the chain.
Tie straps without a bevel are used as
replacements. This simplifies cutting chain to length
and in the event of service.
2.3 Cutting lengths of chain from reels
Tie straps without bevels are included with chain
reels.
TI_52_2008_30_01_01.fm Page 2 of 3
Technical Information 52.2008 Page 3
3. Spare Parts
Item Designation Part No. Remarks
1 RMC repair kit, right-hand cutter 3652 007 1000 1)
2 RMC repair kit, left-hand cutter 3652 007 1001 2)
3 Humped drive link 3/8"; .050" (1.3 mm) 3624 662 1100
4 Humped drive link 3/8"; .063" (1.6 mm) 3626 662 1100
5 Preset tie strap 3724 660 6600
6 Tie strap without rivet 3718 662 1200
Remarks
1) Consists of five right-hand cutters and five preset left-hand tie straps
2) Consists of five left-hand cutters and five preset right-hand tie straps
4. Chain Types
Chain types Abbreviation Chain pitch Drive link gauge
3662 33 RMC 3 3/8" .050" (1.3 mm)
3664 36 RMC 3 3/8" .063" (1.6 mm)
The 3/8" RMC 3 saw chains are available for the same bar lengths as the RAPID™ Micro™ C chains.
© ANDREAS STIHL AG & Co. KG, 2008 Technical Documentation
D1/MTK-bl
TI_52_2008_30_01_01.fm Page 3 of 3
Extracted from the manufacturer's 2012 service catalogue. Most of these PDFs embed fonts with a shifted character map, so the text above was recovered rather than copied — read it as a faithful but imperfect transcription, and treat the page image above each block as the authority where the two disagree — the figures exist only there, because they are vector drawings that text extraction cannot keep.